Do I need bigger injectors?
Thread Starter
Drifting
Joined: Jul 2003
Posts: 1,895
Likes: 1
From: Austin tx
St. Jude Donor '09
Do I need bigger injectors?
Here is what I am got on my 03 Z06 currently:
Kooks Long Tube Headers w/ high flow cats and xpipe
Vararam
160 tstat
Here is what I am getting ready to add:
Futral Motorsport F13 Cam 230/232 .595/.585 112+4
Patriot LS6 style 2.02"/1.6"/59cc Heads which will make compression 11:1
Stock block and everything else.
Thanks
Ray
Kooks Long Tube Headers w/ high flow cats and xpipe
Vararam
160 tstat
Here is what I am getting ready to add:
Futral Motorsport F13 Cam 230/232 .595/.585 112+4
Patriot LS6 style 2.02"/1.6"/59cc Heads which will make compression 11:1
Stock block and everything else.
Thanks
Ray
Last edited by AM.MSCL; Feb 16, 2006 at 02:47 PM.
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Ray
Probably not, but the only way to know for sure is to use something like HP Tuners, EFI Live ect and see what you injector pulse width is doing. If it is exceeding 80% during WOT, then you will need to step up to something bigger. I have been told that the stockers are good up to 500 HP. I am doing the exact same thing that you have planned soon so,, I will be in the same boat. I will have access to HP Tuners.
Bill
Probably not, but the only way to know for sure is to use something like HP Tuners, EFI Live ect and see what you injector pulse width is doing. If it is exceeding 80% during WOT, then you will need to step up to something bigger. I have been told that the stockers are good up to 500 HP. I am doing the exact same thing that you have planned soon so,, I will be in the same boat. I will have access to HP Tuners.
Bill
Race Director
Joined: Nov 2005
Posts: 14,553
Likes: 1,549
From: Supporting the Corvette Community at Abel Chevrolet in Rio Vista, CA 707-374-6317 Ext.123
St. Jude Donor '08
The stock injectors are good for up to about 425RWHP. To be on the safe side I would replace them before you get the car tuned. I thought my stockers would be enough until we looked at the a/f ratio during tuning. My cam has similar specs so I would say you should change them. JMO
Racer
Joined: Aug 2003
Posts: 397
Likes: 1
From: Gurnee IL
Ray, I would recommend upgrading to at least the SVO 30# injectors. I have a similar cam with stock heads and my duty factor was 87% at WOT with stock injectors.......yours will be higher adding the heads. I plan to upgrade when I go with the AFR 205's and retune later this year. Sounds like your building a beast! Good luck. 
Z06_Bob
Z06_Bob
